Email Notificaition Not Working

I have WPMU and Buddypress set up on MAMP, local testing environment. When I sign-up a new test user, and activation email does not get delivered. What needs to be done to get this to work. I obviously want to test it all before going live.

I did get an email when the admin user was created in the intital install, etc…

It means that I am able to send and receive e-mails using a virtual domain on my local server.

I’ve installed:

-WPMU

-BP 1.1.3

THE PROBLEM IS:

When I register a new user using the regular sign up form, I receive the check e-mail message, but no message is sent to my mail account.

I’VE TESTED the forgot your password WPMU function by using my admin account data to retrieve my e-mail and it works instead.

So:

1) Sign Up message does not work.

2) Forgotten password message works correctly.

The way I’ve done it is by creating a virtual domain directed to 127.0.0.1; and using it also as pop and smtp server address. Messages are received via that address by a SMTP/POP3 server installed on my PC.

I can send e-mails using thunderbird (or any other e-mail client) without any problem.

When the BP plug-in is installed instead, I believe we should change the function bp_core_screen_signup() from the file: /wp-content/plugins/buddypress/bp-core/bp-core-signup.php in order to tell BP to accept our local mailserver in a similar way that the one described just before. Since I don’t need to do this for now, I haven’t written exactly the php sentences.